Grip-tread for elastic tires.



T. H. UURTS.

READ FOR E APPLIOATIOH PILE@ mm2. 190s.

LASTU TIRES.

. GRIP T Patented June 15, 190@ IHNYE'NTQR www im@ fw s Citizen of thv Unizvd btntvs, and a siden' Qi the city QiAMiisViHQ ir. the county 015 si msnm and Sini@ ci uiniiwiiy, nii-ve in# ionized (1v1-min iww and us'fi'ui.hupmvments iii; Grip-Tre; fis for illnsii'c, Tiri-s so Freven Siippmg or zidriing am Siipgmy 'iwemsn Ronds, of whivii the folimfvingf 'is s fu, clear, :md mim-,t dus-u intimi. i

My invon'imi riz-arcs tu new and -ise'fi;1i1o.w provfaments in s, Circuiating giip-tieaii. foi" the* tire of a vehicle Wheei and @speciaiy 'adzip'e 'for usupnn :m elastictii'e of eiier pneumatic @I cushion type and comprises ain grip-trend that can be cii'ciiied; GT ved 'erziiisverssiv or nbliqueiy o1' in both directions across 'Li/ie resd of the tim and is guided at suitable intervals by gripwemiguides which secured to side-holding members Gi sie--C ns which mid the gripoiji she trs-au of the tira. 'The gzip i aan be used singzuiuiy ci' in ivuitipie.

'mimi' in'v'enions imi purine gaat@ is anni anti-slapping" "r mim-sk 1a n3 rie-- ad of the. f-isv, i mw@ lrimsvfisfmovement, in :i www mamen? o1- memijv. 5G, 'wiih pmdus i maximum wam on die gaf 'Tend-simil?. ha onion of siiifi chaii'i'wiiisl' is over if. lw Lira. This Wearing' poi-tien. criminali to about inw@ si' this@ links of tia@ sim-in, leaving aiout fins-hah t@ tiu'un-quaeis *d m me vim-in ummm, as tbs entire suffixes of the, grip -sifi mis mit biou'gh im@ paisitiim mns- C-e-ivex e ual www; amid-Whe?. Lbs Weaving por tion i'fquix'vs renewni on 926mm? Gf weakness uid being worn out, the uiwom 'pmt-imi must be rezwwaci aim.

The oiiicm'; o? my inveni-mi is tu piviiia gi'ipftmid that (van be iicuiatefi wrmowd acrciss the 'tread (if the tie, whereby :iii @he grip-trfifif nu'iy ma wom eqimiiy This i accomplish by means hereinafter desaihffi arid pmticuimiy pointed ouvv in the cinin'is,

in the accompanying (irmvings, fmmiuff a. piu of this spsaifinnmn :izii'\vhnr iu him symimis reifer 3Q iik@ pars whrovpi they our' vUigiu'c i. is :L side elevation o i; Ver i iicifa Qiusiic. iff, Oithm of @ushiuii mpmu'- nmtic yps, with giip-tiifzids, grip-ammiguides and sifiefnoifing zmmho'rs a'piel, and Fig. 2 is zi pian iew ui'sime. u@ 3 is a side View of the eiiis'ic tire ifi-minimi on n shown in' s y l 7, the L oi nppiymg trends.

sida-homing members, EL E of f5?, E?, :is

isiwholding 31mm- 01's :mii fumi guides im.

amitiuuous i1-mimi w iii-u ami mais v A To provid@ @quai Wear on sii @uns o 'ii grip-tread in the form of a four lsided poly- A circulating grip-tread for an elastic tire, said griptiead being secured to sideholding members by griptreadguides, and said guides being secured in proper position on the side-holding members to guide they griptread in the lorni of a polygon.

A circulating grip-tread i'oi' an elastic tire, said grip-tread being secured to sideholding members by grip-treadguides, and said guides being secured in proper position on the side-holding ii'ieinbers to guide the grip-tread in the l'orniol' a four sided polygon having one oi' its sides extending both transversely and obliquely olI the tire tread.

7. The combination with a circulating grip tread l'or an elastic tire, of side holding niembers and grip tread guides through which the grip treat circulates, secured to said lioldins members in position to guide the grip trea in a plurality of lines extending at angles to each other, substantially as specified.

8. The combination with a circulating grip tread for an elastic tire, of side holding inembcrs and grip tread guides through which the grip tread circulates, secured to-said holding members in position to guide the grip tread in a plurality of lines extending at angles to each other, one or morey of said lines extending transversely across the tread of the tire,

substantially as specified.

9. The combination with circulating grip tread for an elastic tire, of side holding meml ing transversely and obli iiely across the tread of the tire, 'substantia y as s eeiiied.

10. The combination with an e asticitire, of a plurality of endless circulating polygonal shaped grip-treads, and a plurality oi guides for each of said endless grip-treads, substantially as speciied.

1l. The combination with an elastic tire, of a plurality of endless circulating polygonal sha ed grip-treads, a plurality of guides for eac of said endless grip-treads, and side holding members for the grip-tread guides, substantially as specified.

12. The combination with an elastic tire, of a plurality' of endless circulating polygonal shaped gri -treads, and a plurality of guides for each o said endless grip-treads, each of said endless grip-treads having a plurality of transversely extending lines or members, substantially as specified.

i3. The combination With an elastic tire, of a plurality of endless circulating polygonal shaped gri .-t1eads, and a plurality of guides for each o said endless'grip-treads, each of said endless grip-treads having an obliquely and transversely extending line 'or member, substantially as specified.

14. The combination with an elastic tire, of a plurality of endless circulating polygonal shaped gri -trea ls and a plurality of guides for each ol) said endless grip-treads, each of said endless polygonal grip-treads having a circumferentially extending line or member, substantially as specified.

THEODGRE CURTIS.

Witnesses:

'EDWiN S. Hnoooooir,

W. A. MoCLUini. 

